Overhead traveling crane.



PATENTED FEB. 5, 1907.

0. L. TAYLOR. OVERHEAD TRAVELING CRANE.

APPLICATION FILED JUNE 4, 1906.

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ful' Improvements in Overhead Traveling 'ers being secured to the innersection of each brace to the other.

UNITED STATES PATENT oEEroE.

CLARENCE L. IAYLOR, or ALLIANCE, omo, ASSIGNOR, TO THE MORGAN.

ENGINEERING COMPANY, or ALLIANCE, OHIO.

OVERHEAD TRAVELING CRANE.

Specification of Letters Patent.

Patented Feb. 5, 1907. 7

To all whom it may concern: v

' Be it known that I, OLA E oE L. TAYLOR, I

of Alliance, in the county of Stark and State of Ohio, have inventedcertain new and use- Granes and I do hereby declare the following to bea full, clear, and exact description of skilled in the art to which itappertains to make and use the same.-

My invention relatesto an improvement .in overhead traveling cranes, andparticularly to an improvement disclosed in my Patent No. 821,136,granted to me May 22, 1906. v

In the patent above referred to the girders are in the form of I-bearns,the auxiliary girdmain girder so as to cause each to act as a In thepresent device the girders,includ1ng those on which the auxgirder beingdisconnected from the others except'at the ends.

The accompanying drawing is a view in transverse section of a bridge,the main and auxiliary trolleys being shown diagrammat- The main girderswhich carry the main hoist-trolley l are each composed of two boxgirders2,disconnected from end toend and separated sulfi ciently for the freepassage and movement between them of the hoist ropes or chains 3 fromthe main trolley. The main trolley 1 is mounted on flanged wheels 4,arranged in pairs, as she n, one pair being located at or near eachcorner of the trolley,

the said wheels traveling on rails 5, secured to the upper surfaces ofthe girders 2, thus distributing the weight of the trolley and its loadevenly on the four sections constituting the main girders and bringingthe weight of the suspended load outside of the plane of the innersurfaces of the main girders, thus obviating to a large extent anytendency of the inner sections of the main girders to spread. Locatedbetween the inner sections of the main girders arethe auxiliary girders6, also of box form, provided on their upper surfaces with rails 7, onwhich the auxiliary trolley 8 travel These inner auxiliary girders 6 areof less depth than the outer main girders, so as to permit theauxiliarytrolley to travel freely throughout the length of the bridgewithout contacting with the main trolley or any part carried thereby.The v mist-chains 9 from the trolley on the auxiliary girders passdownwardly between said girders, and owing to the box form of the latterand the fact that they are comparatively close together there is butlittle or'no tendency to spread under the comparatively light andwell-known manner, and the bridge thus constructed is designed to travelon elevated tracks.

It is evident that many slight changes might be made in the relativearrangement of parts shown and described without departing from thespirit and scope of my invention. Hence I would have it understood thatI do not wish to confine myself-to the exact construction shown anddescribed; but,

Having fully described my invention, what I claim as new, and desiretosecure by LettersPatent, is- I 1. In an overhead crane, thecombination of two main girders each made up of two Parallel separatedsections, the latter being disconnected l'roni end to end, a trolleyhavingbearing on each section of saidmain girders,

intermediate girders and a trolley on said inf terinediate girders, eachsection of the main girders and the auxiliary girders being of box form.

2. In an overhead crane, the combination of two main girders each madeup of two parallel separated sections, each section being of box form,the sections of each girder being (IISCOIIIIQCtOdfIOIII end to end atrolley having bearing on each section of said main girders,intermediate girders of box form disconnected l'roin the main girdersexcept at their ends, and an auxiliary trolley mounted 4 on saidintermediate girders.

In testimony whereof I have signed tlns specification in the presence oftwo subscrib ing'witnesses.

CLARENCE L. TAYLOR.

Vitnesses;

N. C. TETTERS, E. VVARDER.

